Poration



Jul 1927. Y E. c. BUNNELL ET AL LOOM WITH EDGE 'fRIMMERS 4 Sheets-Sheep1 r d, m N E rn ew mg n 2 E C 1 wk 5% N L Jul 1927.

y E. c. BUNNELL ET AL LOOM WITH EDGE TRIMMERS I Filed April 5.- 1926 4Sheets-Sheet 2 dr mw ma 9 1 a up. 5 U 1 r wk 3 mm L A TTORNEY July19,192.70 3 1 E. C. BUNNELL ET AL LOOM WITH EDGE TRIMMERS Filed April 51926 4 Sheets-Sheet 3 A TTORNEY July 1927' E. c. BUNNEtL E LOOM WITHEDGE TR'IMMERS 4 Sheets-Sheet 4 Filed April dz Sn M v. TM 9 E mm we. M IQ m m 1 w NW M BM E z T IJ W I um 6 e %@H LM msfi W QH wmw\\ g MPatented July 19, 1927. p v

UNITED STATES PATENT OFFICE.

EARL C. BUNNELL, OF STRATFOBD, AND LESTER II. MESSINGER, JR., OF BRIDGE-PORT, CONNECTICUT, ASSIGNORS TO THE C. 0. JELLIFF MANUFACTURING COR-PORATION, OF SOUTHPORT, CONNECTICUT, A CORPORATION OF CONNECTICUT.

LOOM WITH EDGE TRIMMEBS.

Application filed April 5, 1926. Serial No. 99,867.

This invention relates to a loom especially adapted to the purpose ofweaving wire fabric, usually heavy wire fabric, and having trimmers forremoving end portions of the cross-wires of weft of the wire fabric.

An object of the invention is to provide a loom including a mechanicallyactuated beater or lay adapted to drive each woven crosswire into itsfinal position relatively to the warp of the wire fabric being woven,and having novel and improved mechanism for automatically actuating thebeater or lay.

A further object is to provide a loom for weaving heavy wire fabricwherein the crosswires are separately positioned in the sheds, usuallyby hand, and wherein said crosswires are each automatically andmechanically driven into final position relatively to the warp wires ofa wire fabric or mesh being manufactured.

A further object is to provide a loom including a mechanically actuatedbeater or lay adapted to strike each woven crosswire two blows, thefirst blow to be a relatively heavy one forcing the cross-wire into thewarp wires and crimping the Warp wires, as will be understood, and thesecond blow to be a lighter one to make certain that the cross-wire willbe permanently and properly seated, the loom having mechanism forautomatically actuating the beater or lay, the mechanism being adaptedto cause the heater or lay to strike each cross-wire with trip hammerblows.

A further object is to provide in the loom novel forms of cams forwithdrawing the heater or lay and its reed away from a woven cross-wire,and a weight or weights for actuating the beater or lay to cause it tostrike a trip hammer blow against a woven crosawire when released from acam, whereby a blow or blows of any desired magnitude can be struck across-wire.

A further object is to provide in the loom mechanism for automaticallycreating the sheds in synchronism with the operation of the heater orlay.

A further object is to provide in the loom a feeding mechanism for thewarp wires designed to automatically feed said warp wires ahead one stepor stage for each cross-wire Woven into the warp wires, whereby all. a

the weaving can be accomplished at a single location or stationin theloom.

A further object is to provide a feeding mechanism for the warp wires asstated, which feeding mechanism will be adjustable to be capable ofproviding a one step or one stage feed of any preferred length, thelength in a particular case to depend upon the cross sectional area ofthe wire being woven and the mesh of the wire fabric being produced.

A further object is to provide a power operated loom which is producedby conversion of a well known type of hand operated loom for weavingheavy wire fabric.

A further object is to provide a loom for weaving wire which can consistmostly of standard or commercial parts, this being especially so withrespect to the driving mechanism of the loom.

And a further object is to provide in the loom unique mechanism fortrimming the edges of the woven fabric; that is to say, to provide edgetrimmers adapted to remove the ends of the weft or cross-wirespreferably at the location of the outermost of the warp wires. 1

With the above objects in view, as well as others which will appear asthe specification proceeds, the invention comprises the construction,arrangement, and combination of parts as now to be fully described andas hereinafter to be specifically claimed. it being understood that thedisclosure herein is merely illustrative and intended in no way in alimiting sense, changes in details of construction and arrangement ofparts being permissible so long as within the spirit of the inventionand the scope of the appended claims.

In the accompanying drawings formmg a part of this specification.

Fig. 1 is an elevational view of the drive side of a loom having thefeatures of the invention;

Fig. 2 is a front elevational view thereof;

Fig. 3 is an enlarged fragmentary elevational view of the side of theloom opposite the drive side;

Fig. i is an enlarged fragmentary sectiona1 view, on line t-i in Fig. 2;A

Fig. 5 is a fragmentary elevational view he drive, disclosing the sidethereof op- .te that: in Fig. 2;

Fig. 6 is a detail sectional view of a feature of the warp wire feedingmechanism, on line 66 in Fig. 2;

Fig. 7 is a detail sectional view of another feature of the warp wirefeeding mechanism, on line 77 in Fig. 3; V

Fig. '8 is an enlarged sectional view detailing the edge trimmer, online 8-8 in Fig. 3; and e Fig. 9 is an enlarged fragmentary elevationalview partially in section, of the edge trimmer as seen from the right inFig. 8.

With respect to the drawings, 10 denotes the frame of the loom, 11 thebreast beam, 12 the back beam, 13 the warp wires upon the breast beamand back beam, the ends 9 through of the warp wires being securedtogether, as at 14, whereby during the weaving operation each warp wire'is a continuous wire about the breast beam and back beam, as will beclear from Figs. 1, 3 and 4. 15 is a warp wiretensioning rack having theback beam 12, 16 is an adjusting screw for said rack, 17 are spacedapart notches in said rack for the shaft 18 of the back beam, and 19 arenotches in the frame 10 for the shaft 20 of the breast beam 11. Theupper part of the frame 10 has brackets 21 supporting a cross-rod 22upon which arms 23 of a beater or lay 24 are pivotally suspended, 25representing the reed of said heater or lay having dents 26. 27represents the harnesses of the loom which ride on overhead pulleys 28and have heddles 29 which the warp wires 18 are threaded, and 30 are thetreadles for ope fat- .ing the harnesses.

The parts so far described are all common to a type of hand operatedloom for weaving wire fabric therefore well known.

In the operationof said hand loom, the harnesses are actuated by foot toproduce the sheds, the cross-wires are inserted, usually by hand, andthe beater or lay is manually operated to strike several blows againsteach cross wire to be woven, usually a relatively heavy one forcing'thecross-wire into the warp wires and crimping the warp wires, and alighter blow "to make certain that the crosswire is permanently andproperly seated. I

When using the loom of the present invention, the cross-wires may be,and preferably are, positioned in the sheds by hand, but the harnessesfor producing the sheds are power actuated, as is also the heater or layto strike the blows, desirably two blows for each cross-wire, drivingthe cross-wires home and insuring their permanently set positions withrespect to the warp wires.

Of the mechanism for actuating the harnesses 27 and the beater or lay24, 81 is a main shaft in brackets 32 and having a loose pulley 33adapted to be driven from any source of power as by a belt (not shown)over the pulley, 84 denoting a friction clutch fixed to the main shaft31 and adapted to engage said pulley to cause it to rotate said mainshaft 31. r

A pinion 35 fixed upon the main shaft 51 meshes with. a large gear 36fixed upon a beater-actuating cam shaft 37 havine its opposite ends 38mounted in the frame 1.0 as at The cam shaft 37 has upon each of itsopposite end portions, preferably within the side members of the frame,a large cam 40 and a small cam 41, said cams 40 and 41 desirably havingexternal surfaces, denoted 42 and 43, respectively, which extendspirally outwardly from adjacent the axis of the beater-actuating camshaft 37, each cam 40 and 41 terminating; abruptly at its outer end, asrepresented at 44 and 45, respectively. See Fig. 4.

' Levers 46 pivoted at 47 upon brackets 48, one upon each side member ofthe frame, are connected by links 49 with a cross-shaft 5O the heater orlay 24, each lever 46 having a roller 51 adapted to ride once upon theexternal surfaces of cams 40 and 41 during each complete revolution ofthe beater-actuating shaft 37. The cams 40 and 41 are adapted to swingthe beater or lay arms 23 rearwardly to oblique position, as disclosedin Fig. 1, the cams40 swinging said heater. or lay arms 23a consid rabledistance away from the vertical, and the cams 41 swinging said heater orlay arms a less distance. hen the cams 40 and 41 release said beater orlay it is adapted to swing as a pendulum to cause the dents 26 of thereed of the beater or lay to strike against a cross-wire previouslypositioned, as by hand, in the shed 52. VVclghts 53 upon cords 54 ridingover idler pulleys 55 upon the frame and secured to the heater or lay 24or its cross-shaft may assist in causing the heater or lay to strike itsblow, or the weights 53 may alone constitute the actuating means forcausing the beater or lay to strike the cross-wires, as will be obvious.Clearly, the earns 40 and 41 can be constructed to give the heater orlay any working stroke desired, and the weights can be heavy or light tocause blows of any desired nuignitude to be struck. All of the blowsupon the cross-wires will be clear and sharp; in fact, the blows willall be trip hammer blows. e

The beater-actuating shaft has a sprocket 56 fined upon it, the sprocketcarrying a sprocket chain 57 also riding upon a sprocket 58 fixed upon ahamess-actuating cam shaft 59 mounted in theside members of the frame at60. Glare canisupon the harness-actuating cam shaft 59 adapted to engageand actuate the harnesses 27, said cams 51 beii'ig adapted to engagerollers 62 upon the treadles 39. See Figs. 1 04. The harness-actuatingcam shaft is related to the Itli and engaging; the drum.

beater-actuating cam shaft in such manner that for each completerotation of the beateractuatiup; cam sliaft there is a rotation of theharnessaurtuati up cam shaft one hundred and eighty degrees. so thateach cam 4d and 411 will allow a blow to be struck an inserted cros-wire for each shed prodiuzed, with front harness up and back harnessdown, and vice versa. That is to say, during each revolution or completecycle of the beater-actuah ing shaft. the hariless-actuating shaft rotates a half rcvolutit A. or half-cycle, producing one shed. so thateach cam 40 causes the heater or lay to be actuated and released tostrike a heavy blow against a cross-wire, and each cam t]. causes theheater or lay to be actuated and released to strike a lighter blowagainst said cross-wire, all while a shed existent. At the completion.of the lighter blow, a new shed is caused to be formed by theharncss-actuating came, one being up while the other is down. a newcross-wire is inserted, and the cycle of operations is repeated.Preferably the cross-wires are crimpt or bent before insertion in thesheds, as is the usual practice.

There is in the loom a feeding mechanism for the warp wires to feed saidwires ahead one step or stage for each cross-wire woven into the warpwires, so that all of the weaving: can be advantageously accomplished ata single location or station in the loom, and

the warp wire feeding mechanism is capable of adjustment to provide aone step or one stage feed of any preferred length, the length to dependupon the cross-sectional area of the wire being woven and the mesh ofthe fabric being produced.

(if the warp Wire feeding mechanism, 63 is a lever secured at Get to adrum 65 about a ratchet 6 fixed to the shaft 20 of the breast beam ll asby a key 67, 68 denoting" rollers upon the perimeter of the ratchet Theperimeter of the ratchet is so constructed that the drum (3'3 is -freelyrotatable in one direction (in the direction of the arrow in Fig. 6),but the instant attempt is made to rotate said drum in oppositedirection (in clockwise direction in Fig. 6), the rollers 68 lock theratchet and drum to each other to cause the shaft 20 and the breast beamto be rotated. (39 is a link pivoted at 70 to the lower end of the lever63 and at 71 upon a device 72 fixed upon the beatcr-actuating cam shaft37, the pivot Tl beingadjustable in any convenient manner from andtoward. the axis of said shaft 237. it. suitable arrangement isdisclosed in Figs. 3 and 7. In said figures, 78 a shouldered blockslidable in a radial slot i l in the device 72, and 75 is an adjustscrew.in the device 72 for said block 73. 76 a threaded stud upon said blockwhich enters an opening 77 in the end of the link 69 spaced. from thelever 63, 7 8 indicating a.

causes the lever (is bushing upon said stud and between the link 69 andthe device T52. 79 is a nut upon the thread of the stud 76, and Rt) is awasher upon the stud and between the nut and link (59. learly. by use ofthe adjusting screw To, the stud 76 can be set at desired distance fromthe axis of the i-ihaft I37.

l lvideutly, the distance the pivot "il spaced from the axis of theshaft 37 determines tie extent of movement of the link (3 and the lever63. A complete rotation of the shaft 37. together with the device 72,

to oscillate back and forth once, movement in one direction rotating theshaft 20 of the breast beam ll, and movement in opposite directioncausing the drum 65 to rotate free of the ratchet 66, as will beobvious. Forward movement of the lever (33, as disclosed. rotates thebreast beam one step or onemesh in the 'li'ecdinp; direction of the warpwires, the length of each rotation depending upon the position of thepivot Tl relatively to the axis of the shaft, 3'7, and determining thelength of each feeding; movement of the warp wires. The feed will be soadjusted that all of the weavinp can be accomplished at approximatel -ithe same location or station in the loom, and the length of each feedingmovement will depend upon the mesh of the wire fabric being produced.

The cross-wires woven into the warp wires are longer than the distancerepresenting the width of the finished wire fabric to protrude at bothsides of the fabric beyond the outermost of said warp wires to makecertain that. all of the cross-wires will extend the width of thefabric, as will be understood. Mechanism is provided in the loom forremoving the ends of said woven crosswires, preferably at the locationof the outermost of the warp wires.

This mechanism is best disclosed in Figs. 1., 3. 4i, 8, and. 9. In said.figures, 8t are brackets secured. upon the side members of the frame 10and supporting two shafts extending); transversely across the frame,including a rotatable forward shaft 82 and a fixed rearward shaft 83.These shafts carry two edge trimmers. one at each side of the framewithin the side members. ()f each edge trimmer. 84; is a. s1upportinp,member for the relatively stationary knife of the trimmer, said member81% being); n'uuinted upon the shaft 82, as at 85, and upon the shaft83. as at 86, to be adjusta )le longitudinally of said shafts. 8? is aset screw in the member 8t adapted to engage the shaft 83 to fix thetrimmer upon the shaft when adjusted to desired position along" thelei'igth of the shafts. The supporting member 8 1- carries a verticallyadjustable knife 88, 89 representing horizontal holding screws inelongated slots 90 in said knife 88 and entering the supporting member8d, and 91 indicating vertical adjusting screws in said (ill member 84and engaging the upper face 92 of the knife opposite its cuttingedge 94is a supporting; member for the movable knife of the trimmer, saidmember 94 being pivoted at 5 upon the supporting member tric or camwhich is slidable in a key-way 101 of said shaft 82, the key renderingthe eccentric or cam rotatable with the shaft. 102 is'a cap fixed to thestationary supporting member 84 as at 103, the cap being close to orcontiguous with adjacent faces of the pivoter. sinn' ortii'igg member 94and the eccentric or cam 99, whereby the cap locates the n'iember 94 andeccentric or cam 99 relatively to each other and relatively to themember 84. That is to say, the member 94 and the eccentric or cam 99 arebetween the member 84 and the cap 102 secured to said member 84, so thatwhen the member 84 ismoved along the shafts 82 and 83, the memher 94 andthe eccentric or cam 99 move with said member 84, the cap 102 and member84 insuring the relation of the member 94 and the eccentric or camrelatively to each other. Numeral 104 indicates levers, one fixed toeach end of the shaft 82, as at 105, beyond the side members of theframe, and 100 denotes retainers, one upon the upper end of each lever104, which receive the crossshaft 50 ot' the heater or lay 24, the bodyof each retainer 106 bein spaced from a lever 104 a distance about equalto the diameter of the i haft 50 and the length of said body beinggreater, whereby oscillatory movements of the heater or lay cross shaftwill be imparted to the levers 104, and said crossshat't can havemovement in the retainers 10G longzjitudinally of the levers 104 duringsa d or atory movements. 7

C ear. oscillatory movements imparted to said levers 104 by actuationsof the heater or lay, through said cross shaft 50, will orcillatc thecccentrics or cams 99 and thus cause the pivoted supporting members 94to oscillate moving; the knives 96 relatively to the knives 88, saidknives being set with respect to each other to together cut off the endsof the cross-wires, as will be apparent from Fig. 8, 10? indicating thecutting edge of each knife 96. l.-shaped arms 108, one for each edgetrimmer, secured at 109 upon the outer ends of the members 94, are litas 110 beneath the eccentrics or cams 99 to insure that said members 94will follow the movements of said eccentrics or cams. In practice, theedge trimmers are adjusted longitudinally of the shafts 82 and 83 to thepositions desired, depending upon the incorporated in the hand operated.loom to.

produce the power operated loom are, for the most part, commercial orstandard, this being especially so with respect to the driv innmechanism of the loom.

Having thus fully described the invention,

what we claim as new and desire to secure by Letters Patent is:

1. A. loom for weaving wire fabric, comrising' a heater, means foractuating the beater to cause it to strike a plurality of blows againsteach of cross-wires to be woven into warp wires, said means compris inna plurality of cams for withdrawing said heater from the weavinglocation, there being); a cam for each blow to be struck a cross-wire.and each cam being, adapted to release said heater when withdrawn, andmeans upon said beater for causing; it to strike a trip hammer blowagainst a cross wire each time it is released from a cam, said lastmentioned means comprising a we'g'ht, a cord suspending said. we ghtfrom said heater, and a rotatable member over which said cord passes.

2. A loom for weaving wire fabric, comprising: a heater, means foractuating the heater to cause it to strike a plurality of blows againsteach of cross-wires to be woven into warp wires, said means comprising aplurality of cams for withdraws inn said heater from the weavinglocation, there being: a cam for each blow to he struck a cross-wire,and each cam being adapteijl to release said beater when withdrawn.means upon said heater causing; it to strike a blow against a crosswireeach time it is released from a cam, and means actuated by the beateractuating means adapted to cut off the ends of crosswires of the wovenwire fabric locations in advance of said heater.

A loon'rfor weaving wire fabric, comprising a heater, actuating meansfor withdrawing said heater from the weaving location and for releasingsaid heater to cause it to strike a plurality of blows against each ofcross-wiresljo be woven into warp wires, and means actuated by thebeater aotuatin means adapted to cut off the ends of crosswires of thewoven wire fabric, said last mentioned means being actuated each timesaid heater strikes a blow against a cross wire, whereby the cross-wirecut-off means is actuated more than once during the period in which anyone cross wire is at the,

cutting off location. 7

4; A loom for weaving wire fabric, comloo for 7 prising a beater, meansfor actuating the beater to cause it to strike a plurality of blowsagainst each of cross wires to be woven into warp wires, said meanscomprising a phirality of cams for withdrawing said beater from theweaving location, there being a cam for each blow to be struck across-wire, and each cam being adapted to release said beater whenwithdrawn, means for causing said beater ,tostrike a blow against across-wire each time it is released from a cam, and cross-wire cut-offmeans actuated by the beater actuating means, said cross-wire cut-offmeans functioning once for each blow struck by said beater.

5. A loom for weaving wire fabric, comprisinga beater, actuating meansfor withdrawing said beater from the weaving lo cation and for releasingsaid beater to cause it to strike a plurality of blows against each ofcross-wires to be woven into warp wires, feeding mechanism for the warpwires adapted to feed said warp wires ahead one mesh for each cross-wirewoven into the warp wires, and means actuated by the l alter actuatingmeans adapted to cut off the ends of cross-wires of the woven wirefabric as fed by said feeding mechanism past said beater and to saidcut-off means, said last mentioned means being actuated each time saidbeater strikesa blow against a cross wire.

(3. A loom for weaving wire fabric comprising a beater, means foractuating the beaten to cause it to strike a plurality of blows againsteach of cross-wires to be woven into warp wires, said means comprisin ga plurality of cams for withdrawing said beater from the weavinglocation, there being a am for each blow to be struck a cross wire, andeach cam being adapted to release said beater when withdrawn, means forcausing said beater to strike a blow against a cross-wire each time itis released from a cam, feeding mechanism for the warp wires adapted tofeed said warp wires ahead one mesh for each cross-wire woven into thewarp wires, and cross-wire cut-off means actuated by the beateractuating means, both said cross-wire cut-off means and said warp wirefeeding mechanism functioi'iing once for each stroke of said beater.

T. A loom for weaving wire fabric, com- "irising a. heater, means foractuating said heater to incorporate crossovires into warp wires of awire fabric being woven, and means actuated by the beater actuatingmeans for cutting off the ends of each crosswire at location spaced fromsaid beater, said last mentioned means comprising cut-off knives, alever associated with one of said knives, a cross-shaft upon the beater,and a retainer upon said lever and about said cross-shaft, said leverextending downwardly from said cross-shaft, and said retainer permittingrelative longitudinal movement between said lever and said beater.

8. A loom for weaving wire fabric, comprising a heater, means forautomatically actuating the beater to incorporate crosswires into warpwires of a wire fabric being woven, said beater including a horizontalcross-shaft, and means actuated by the beater actuating means forcutting off the ends of each cross-wire, said last mentioned meanscomprising knives, a lever associated with one of said knives andextending downwardly from said beater, and a retainer upon said leverand about said cross-shaft, said retainer permitting relativeoscillatory and longitudinal movement between said lever and saidbeater.

9. A loom for weaving wire fabric, comprising a beater, means forautomatically actuating the beater to incorporate crosswires into warpwires of a wire fabric being woven, and means for cutting off the endsof the cross-wires as woven into the warp wires of the wire fabric, saidcutting off means being actuated from said beater and comprising a leveroscillatably associated with said beater and extending downwardly fromand at an angle to said beater, a shaft supporting said lever, aneccentric upon said shaft, a movable knife associated with saideccentric, and a fixed knife with which said movable knife cooperates.

it). A loom for weaving wire fabric, comprising a beater, a breast beam,a back beam, said beams being adapted to receive warp wires of a wirefabric to be woven and the ends of the warp wires being adapted to besecured together to constitute a continnous belt about said breast beamand back beam, means for actuating the beater to incorporate cross-wiresinto warp wires of the wire fabric, feeding mechanism for the warpwires, and means actuated by the beater actuating means for cutting offthe ends of each cross-wire at a location below a plane passing throughthe axes of said breast beam and back beam and at the side of said beamsopposite the location where said cross-wires are incorporated in saidwarp wires.

11. A loom for weaving wire fabric, eomprising a beater, a breast beam,a back beam, said beams being adapted to receive warp wires of a wirefabric to be woven and the ends of the warp wires being adapted to besecured together to constitute a continuous belt about said breast beamand back beam, means for actuating the beater to incorpoi atecross-wires into warp wires of the wire fabric, feeding mechanism forthe warp wires adapted to feed said warp wires ahead one mesh for eachcross-wire woven into the warp wires, and means actuated by the beateractuating means for cutting off the ends of each cross-wire at the sideof said breast beam and back beam opposite the location Where saidcross-Wires are incorporated in said Warp Wires, said cutting off meanscomprising a lever pivot-ally associated with said beater and extendingdownwardly therefrom, a movable knife With Which said lever is associated, and a fixed knife with which said each cross-Wire Woven intothe Warp Wires,

a second lever pivotally associated with said beater and XtQndingdownwardly there from, and means for cutting off the ends of saidcrosswires associated With said second lever.

13. Aloom for Weaving Wire fabric, comprising a, beater, means foractuating the beater" to incorporate cross-wires into Warp WiIjQS of aire fabric being Woven, and means actuated by the beater actuating meansfor cutting off the ends of the woven crossires, said last mentionedmeans comprising a unit including a relatively stationary supportingmember having a knife,

spaced apart shafts supporting said men tioned member, one of saidshafts bei capable of rotation, a relatively movab e member having aknife, a lever for actuating said rotatable shaft, said lever beingpivotedto said beater, and an eccentric associated with said rotatableshaft for actuating said movable member relatively to said fixed member.

14. A loom for Weaving wire fabric, com

prising a beater, means for actuating the heater to incorporatecross-Wires into Warp Wires of a Wire fabric being woven, and meansactuated by the beater actuating means for cutting off the ends of theWoven cross-wires, said last mentioned means includinoa relativelstationary member'having a Knife, space apart shafts supporting saidmentioned member, one of said shafts belng capable of rotation, arelatlvely movable in niberhaving a knife, a lever for ac- EARL C.BUNNELL. LESTER: H. MESSIN GER, JR.

